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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2011-10-06 08:03:38 -0700 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2011-10-11 07:50:48 -0700 |
| commit | 92fb52d9060a146f31da6f07ea9ce7867294e153 (patch) | |
| tree | d3467aa987fd7dbb8c32041611805532bca73ce1 /libavcodec/simple_idct.h | |
| parent | 8babfc033ecb6332155c1f8879e54dee41d16952 (diff) | |
| download | ffmpeg-92fb52d9060a146f31da6f07ea9ce7867294e153.tar.gz | |
prores: extract idct into its own dspcontext and merge with put_pixels.
Diffstat (limited to 'libavcodec/simple_idct.h')
| -rw-r--r-- | libavcodec/simple_idct.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/simple_idct.h b/libavcodec/simple_idct.h index a33eb964ce..6e22158b0b 100644 --- a/libavcodec/simple_idct.h +++ b/libavcodec/simple_idct.h @@ -38,6 +38,12 @@ void ff_simple_idct_8(DCTELEM *block); void ff_simple_idct_put_10(uint8_t *dest, int line_size, DCTELEM *block); void ff_simple_idct_add_10(uint8_t *dest, int line_size, DCTELEM *block); void ff_simple_idct_10(DCTELEM *block); +/** + * Special version of ff_simple_idct_10() which does dequantization + * and scales by a factor of 2 more between the two IDCTs to account + * for larger scale of input coefficients. + */ +void ff_prores_idct(DCTELEM *block, const int16_t *qmat); void ff_simple_idct_mmx(int16_t *block); void ff_simple_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block); |